I was already wondering why to use JDO when someone is already using EJBs. This feature confuses me more !
Make a POJO persistant archieve the same goal as an Entity bean ? so why bother : I do not see any other advantages than the speed of developpement (no EJB overhead, just POJO).
Back to a more technical question : to make something persistent, you should define a way to store it in a secure place. To work at a field level (for the queries for example), you should store the object's fields in an independant way.
Question is : what storage layer to use and where to declare all this (fields mapping and relative stuff)?
I guess a database is the layer and a config file does the mapping (the page that is still under construction) but (database + mapping configuration files) = ejb ...
Ionel
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